.tree-box{
    min-width: 100px;
    min-height: 220px;
    display: inline-block;
    .item{
        min-width: 80px;
        min-height: 25px;
        line-height: 25px;
        margin-left: 20px;
        font-size: 12px;
        .img-box{
            width: 15px;
            height: 25px;
            line-height: 20px;
            margin-right: 5px;
            cursor: pointer;
        }
        p{
            margin-left: 2px;
        }
    }
}
.active_img{
    transform: rotate(-90deg);
}